8921726

Touch Screen and Manufacturing Method Thereof

PublishedDecember 30, 2014
Assigneenot available in USPTO data we have
Technical Abstract

Patent Claims
16 claims

Legal claims defining the scope of protection. Each claim is shown in both the original legal language and a plain English translation.

Claim 1

Original Legal Text

1. A touch screen, comprising: a substrate; a conductive pattern formed on at least one side of the substrate; and an insulating layer pattern covering the conductive pattern, wherein the touch screen is manufactured by the method comprising the steps of: a) forming a conductive layer on a substrate; b) forming an etching resist pattern on the conductive layer; and c) forming a first conductive pattern having a line width smaller than the line width of the etching resist pattern by over-etching the conductive layer by using the etching resist pattern, wherein in step c), an etching time of the conductive layer is just-etching time to a time more extended by 2,000% than the lust-etching time, wherein the conductive pattern has a line width of 100 micrometer or less, wherein the conductive pattern has a pattern shape formed continuously on an area of 7 inch or more, wherein the insulating layer pattern has a line width larger than the line width of the conductive pattern, and wherein in a cross-section of the line width direction of the conductive pattern, a percentage a/b*100 of a distance “a” from one end of the conductive pattern to the insulating layer pattern and a distance “b” from the other end of the conductive pattern to the insulating layer pattern is in the range of 90 to 110.

Plain English Translation

A touch screen consists of a substrate, a conductive pattern on at least one side of the substrate, and an insulating layer covering the conductive pattern. It's manufactured by: a) forming a conductive layer on the substrate; b) forming an etching resist pattern; and c) etching the conductive layer using the resist, creating a conductive pattern with a line width smaller than the resist. The etching process extends from the "just-etching" point up to 2000% beyond that time. The conductive pattern has a line width of 100 micrometers or less and forms a continuous pattern on an area of 7 inches or more. The insulating layer is wider than the conductive pattern. A cross-section shows the distance from each edge of the conductive pattern to the insulating layer being nearly equal (within 90-110% ratio).

Claim 2

Original Legal Text

2. A touch screen, comprising: a substrate; a conductive pattern formed on at least one side of the substrate; and an insulating layer pattern covering the conductive pattern, wherein the insulating layer pattern has a taper angle of more than 0 degree to less than 90 degrees, wherein the conductive pattern has a line width of 100 micrometer or less, wherein the conductive pattern has a pattern shape formed continuously on an area of 7 inch or more, wherein the insulating layer pattern has a line width larger than the line width of the conductive pattern, and wherein in a cross-section of the line width direction of the conductive pattern, a percentage a/b*100 of a distance “a” from one end of the conductive pattern to the insulating layer pattern and a distance “b” from the other end of the conductive pattern to the insulating layer pattern is in the range of 90 to 110.

Plain English Translation

A touch screen with a substrate, a conductive pattern on at least one side, and an insulating layer pattern covering the conductive pattern. The insulating layer has a taper angle between 0 and 90 degrees. The conductive pattern has a line width of 100 micrometers or less and forms a continuous pattern over an area of 7 inches or more. The insulating layer pattern is wider than the conductive pattern. In cross-section, the distances from each edge of the conductive pattern to the insulating layer are balanced (90-110% ratio).

Claim 3

Original Legal Text

3. The touch screen of claim 2 , wherein the insulating layer pattern has insulation with a leakage current of 0.1 ampere or less.

Plain English Translation

The touch screen as described with a substrate, a conductive pattern on at least one side, an insulating layer pattern covering the conductive pattern with a taper angle between 0 and 90 degrees, a conductive pattern of 100 micrometers or less that forms a continuous pattern over an area of 7 inches or more and where the insulating layer pattern is wider than the conductive pattern and in cross-section, the distances from each edge of the conductive pattern to the insulating layer are balanced (90-110% ratio) has an insulating layer that has insulation with a leakage current of 0.1 ampere or less.

Claim 4

Original Legal Text

4. The touch screen of claim 2 , wherein the insulating layer pattern comprises at least one selected from the group consisting of imide-based polymer, bisphenol-based polymer, epoxy-based polymer, acryl-based polymer, ester-based polymer, novolac-based polymer, and a combination thereof.

Plain English Translation

The touch screen as described with a substrate, a conductive pattern on at least one side, an insulating layer pattern covering the conductive pattern with a taper angle between 0 and 90 degrees, a conductive pattern of 100 micrometers or less that forms a continuous pattern over an area of 7 inches or more and where the insulating layer pattern is wider than the conductive pattern and in cross-section, the distances from each edge of the conductive pattern to the insulating layer are balanced (90-110% ratio) has an insulating layer composed of imide-based polymer, bisphenol-based polymer, epoxy-based polymer, acryl-based polymer, ester-based polymer, novolac-based polymer, or a combination of these.

Claim 5

Original Legal Text

5. The touch screen of claim 2 , wherein the insulating layer pattern comprises at least one selected from the group consisting of imide-based monomer, bisphenol-based monomer, epoxy-based monomer, acryl-based monomer, ester-based monomer, a combination thereof, and copolymer thereof.

Plain English Translation

The touch screen as described with a substrate, a conductive pattern on at least one side, an insulating layer pattern covering the conductive pattern with a taper angle between 0 and 90 degrees, a conductive pattern of 100 micrometers or less that forms a continuous pattern over an area of 7 inches or more and where the insulating layer pattern is wider than the conductive pattern and in cross-section, the distances from each edge of the conductive pattern to the insulating layer are balanced (90-110% ratio) has an insulating layer comprising imide-based monomer, bisphenol-based monomer, epoxy-based monomer, acryl-based monomer, ester-based monomer, or a combination or copolymer thereof.

Claim 6

Original Legal Text

6. A touch screen, comprising: a substrate; a conductive pattern formed on at least one side of the substrate; and an insulating layer pattern covering the conductive pattern, wherein a taper angle of the insulating layer pattern is larger than the taper angle of the conductive pattern, wherein the conductive pattern has a line width of 100 micrometer or less, wherein the conductive pattern has a pattern shape formed continuously on an area of 7 inch or more, wherein the insulating layer pattern has a line width larger than the line width of the conductive pattern, and wherein in a cross-section of the line width direction of the conductive pattern, a percentage a/b*100 of a distance “a” from one end of the conductive pattern to the insulating layer pattern and a distance “b” from the other end of the conductive pattern to the insulating layer pattern is in the range of 90 to 110.

Plain English Translation

A touch screen comprises a substrate, a conductive pattern on at least one side, and an insulating layer pattern covering the conductive pattern. The insulating layer's taper angle is greater than the conductive pattern's. The conductive pattern is 100 micrometers or less in width and continuous over a 7-inch or larger area. The insulating layer pattern is wider than the conductive pattern. In cross-section, the distances from each edge of the conductive pattern to the insulating layer pattern are relatively balanced (90-110% ratio).

Claim 7

Original Legal Text

7. A touch screen, comprising: a substrate; a conductive pattern formed on at least one side of the substrate; and an insulating layer pattern covering the conductive pattern, wherein a void is comprised between the conductive pattern and the insulating layer pattern, wherein the conductive pattern has a line width of 100 micrometer or less, wherein the conductive pattern has a pattern shape formed continuously on an area of 7 inch or more, wherein the insulating layer pattern has a line width larger than the line width of the conductive pattern, and wherein in a cross-section of the line width direction of the conductive pattern, a percentage a/b*100 of a distance “a” from one end of the conductive pattern to the insulating layer pattern and a distance “b” from the other end of the conductive pattern to the insulating layer pattern is in the range of 90 to 110.

Plain English Translation

A touch screen with a substrate, a conductive pattern on at least one side, and an insulating layer pattern covering the conductive pattern. A void exists between the conductive pattern and the insulating layer pattern. The conductive pattern is 100 micrometers or less in width, continuous over a 7-inch or larger area, and the insulating layer is wider. In cross-section, distances from each edge of the conductive pattern to the insulating layer are balanced (90-110% ratio).

Claim 8

Original Legal Text

8. A touch screen, comprising: a substrate; and a conductive pattern formed on at least one side of the substrate and having a line width of 100 micrometer or less, wherein the touch screen further comprises an insulating layer pattern formed on the conductive pattern, and the insulating layer pattern covers the conductive pattern or has a line width larger than the line width of the conductive pattern, wherein the conductive pattern has a pattern shape formed continuously on an area of 7 inch or more, and wherein in a cross-section of the line width direction of the conductive pattern, a percentage a/b*100 of a distance “a” from one end of the conductive pattern to the insulating layer pattern and a distance “b” from the other end of the conductive pattern to the insulating layer pattern is in the range of 90 to 110.

Plain English Translation

A touch screen consisting of a substrate and a conductive pattern on at least one side, where the conductive pattern is 100 micrometers or less in width. It also has an insulating layer pattern formed on the conductive pattern that covers the conductive pattern or is wider than it. The conductive pattern is continuous over an area of 7 inches or more. In cross-section, the distances from each edge of the conductive pattern to the insulating layer pattern are roughly equal (90-110% ratio).

Claim 9

Original Legal Text

9. The touch screen of claim 8 , wherein the conductive pattern has a taper angle of more than 0 degree to less than 90 degrees.

Plain English Translation

The touch screen as described with a substrate and a conductive pattern on at least one side, where the conductive pattern is 100 micrometers or less in width, with an insulating layer pattern formed on the conductive pattern that covers the conductive pattern or is wider than it, where the conductive pattern is continuous over an area of 7 inches or more, and with roughly equal distances from each edge of the conductive pattern to the insulating layer pattern (90-110% ratio) has a conductive pattern that has a taper angle between 0 and 90 degrees.

Claim 10

Original Legal Text

10. The touch screen of claim 8 , wherein the insulating layer pattern has a taper angle of more than 0 degree to less than 90 degrees.

Plain English Translation

The touch screen as described with a substrate and a conductive pattern on at least one side, where the conductive pattern is 100 micrometers or less in width, with an insulating layer pattern formed on the conductive pattern that covers the conductive pattern or is wider than it, where the conductive pattern is continuous over an area of 7 inches or more, and with roughly equal distances from each edge of the conductive pattern to the insulating layer pattern (90-110% ratio) has an insulating layer pattern with a taper angle between 0 and 90 degrees.

Claim 11

Original Legal Text

11. The touch screen of claim 8 , wherein a taper angle of the insulating layer pattern is larger than the taper angle of the conductive pattern.

Plain English Translation

The touch screen as described with a substrate and a conductive pattern on at least one side, where the conductive pattern is 100 micrometers or less in width, with an insulating layer pattern formed on the conductive pattern that covers the conductive pattern or is wider than it, where the conductive pattern is continuous over an area of 7 inches or more, and with roughly equal distances from each edge of the conductive pattern to the insulating layer pattern (90-110% ratio) has an insulating layer pattern taper angle that is larger than the taper angle of the conductive pattern.

Claim 12

Original Legal Text

12. The touch screen of claim 8 , wherein a void is comprised between the conductive pattern and the insulating layer pattern.

Plain English Translation

The touch screen as described with a substrate and a conductive pattern on at least one side, where the conductive pattern is 100 micrometers or less in width, with an insulating layer pattern formed on the conductive pattern that covers the conductive pattern or is wider than it, where the conductive pattern is continuous over an area of 7 inches or more, and with roughly equal distances from each edge of the conductive pattern to the insulating layer pattern (90-110% ratio) has a void between the conductive pattern and the insulating layer pattern.

Claim 13

Original Legal Text

13. The touch screen of claim 8 , wherein the conductive pattern has a sheet resistance of 100 ohm/square to 0.001 ohm/square.

Plain English Translation

The touch screen as described with a substrate and a conductive pattern on at least one side, where the conductive pattern is 100 micrometers or less in width, with an insulating layer pattern formed on the conductive pattern that covers the conductive pattern or is wider than it, where the conductive pattern is continuous over an area of 7 inches or more, and with roughly equal distances from each edge of the conductive pattern to the insulating layer pattern (90-110% ratio) has a conductive pattern with a sheet resistance ranging from 0.001 to 100 ohm/square.

Claim 14

Original Legal Text

14. The touch screen of claim 8 , wherein the conductive pattern has a thickness of 300 nm or less.

Plain English Translation

The touch screen as described with a substrate and a conductive pattern on at least one side, where the conductive pattern is 100 micrometers or less in width, with an insulating layer pattern formed on the conductive pattern that covers the conductive pattern or is wider than it, where the conductive pattern is continuous over an area of 7 inches or more, and with roughly equal distances from each edge of the conductive pattern to the insulating layer pattern (90-110% ratio) has a conductive pattern with a thickness of 300 nm or less.

Claim 17

Original Legal Text

17. The touch screen of claim 8 , wherein the conductive pattern has a deviation of a thickness within 3% for each position.

Plain English Translation

The touch screen as described with a substrate and a conductive pattern on at least one side, where the conductive pattern is 100 micrometers or less in width, with an insulating layer pattern formed on the conductive pattern that covers the conductive pattern or is wider than it, where the conductive pattern is continuous over an area of 7 inches or more, and with roughly equal distances from each edge of the conductive pattern to the insulating layer pattern (90-110% ratio) has a conductive pattern with a thickness deviation of within 3% at all locations.

Claim 18

Original Legal Text

18. The touch screen of claim 8 , wherein the conductive pattern has a deviation of a line width within 30% for each position.

Plain English Translation

The touch screen as described with a substrate and a conductive pattern on at least one side, where the conductive pattern is 100 micrometers or less in width, with an insulating layer pattern formed on the conductive pattern that covers the conductive pattern or is wider than it, where the conductive pattern is continuous over an area of 7 inches or more, and with roughly equal distances from each edge of the conductive pattern to the insulating layer pattern (90-110% ratio) has a conductive pattern with a line width deviation within 30% at all locations.

Patent Metadata

Filing Date

Unknown

Publication Date

December 30, 2014

Inventors

Ji-Young Hwang
In-Seok Hwang
Sang-Ki Chun
Dong-Wook Lee
Yong-Koo Son
Min-Choon Park
Seung-Heon Lee
Beom-Mo Koo
Young-Jun Hong
Ki-Hwan Kim
Su-Jin Kim
Hyeon Choi

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